195876121 has 16 divisors (see below), whose sum is σ = 233654400. Its totient is φ = 160651008.

The previous prime is 195876071. The next prime is 195876151. The reversal of 195876121 is 121678591.

It is a happy number.

It is not a de Polignac number, because 195876121 - 2¹⁵ = 195843353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (195876151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18670 + ... + 27208.

It is an arithmetic number, because the mean of its divisors is an integer number (14603400).

Almost surely, 2^195876121 is an apocalyptic number.

It is an amenable number.

195876121 is a deficient number, since it is larger than the sum of its proper divisors (37778279).

195876121 is a wasteful number, since it uses less digits than its factorization.

195876121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8688.

The product of its digits is 30240, while the sum is 40.

The square root of 195876121 is about 13995.5750507080. The cubic root of 195876121 is about 580.7561688967.

The spelling of 195876121 in words is "one hundred ninety-five million, eight hundred seventy-six thousand, one hundred twenty-one".